Home / 420,255.66-629,805.26-180,082.06

Finding the Fourth Proportional to 420,255.66, 629,805.26 and 180,082.06

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Solution

The fourth proportional to 420,255.66, 629,805.26 and 180,082.06 is: 269,875.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,255.66 : 629,805.26 = 180,082.06 : x
  2. Step 2: Convert to fraction form
    420,255.66/629,805.26 = 180,082.06/x
  3. Step 3: Cross multiply
    420,255.66x = 629,805.26 × 180,082.06
  4. Step 4: Simplify right side
    420,255.66x = 113,416,628,619.64
  5. Step 5: Solve for x
    x = 113,416,628,619.64/420,255.66
  6. Step 6: Final answer
    x = 269,875.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.